Kingflex
Explore our elite selection of flexible NBR/PVC elastomeric rubber foam insulation products engineered for HVAC ducting, cold storage systems, and specialized industrial pipelines.
Fresh air ventilation systems are essential for modern building hygiene, health, and comfort. However, transporting unconditioned outdoor air into temperature-regulated indoor environments creates immediate thermodynamic challenges. Without high-performance thermal insulation, ducts encounter massive temperature differentials that lead to energy waste, thermal loss, and damaging condensation.
Using Kingflex closed-cell NBR/PVC elastomeric rubber foam resolves these challenges by creating a continuous, moisture-resistant thermal barrier. The high vapor-resistance factor (μ ≥ 10,000) prevents airborne humidity from penetrating the insulation body and condensing on the cold metal surface of the fresh air duct. This prevents mold growth, corrosion under insulation (CUI), and maintains indoor air quality (IAQ) at safety-critical standards.
Insights into macro-economic factors, carbon neutrality policies, and standard compliance driving the international commercial insulation market.
Global architectural specifications require HVAC materials to comply with green standards. NBR/PVC closed-cell elastomeric foam reduces operational energy consumption and contributes directly to earning LEED, BREEAM, and DGNB credits through low VOC emissions and optimized thermal properties.
In highly populated areas like hospitals, airports, and universities, IAQ is critical. Fibrous insulation materials risk shedding particulate matter or absorbing moisture, fostering toxic bio-growth. Closed-cell elastomers prevent moisture ingress, ensuring clean, chemical-safe ventilation.
From chemical factories to semiconductor manufacturing plants, high-precision industrial HVAC ducts require exact air-delivery temperatures. Thermal leakage alters sensitive manufacturing conditions; thus, stable insulation thermal resistance (R-value) is critical for system reliability.
Understanding the engineering behind elastomeric foam and how it outperforms traditional rock wool or fiberglass in fresh air ventilation ducts.
Our raw polymer material blends Nitrile Butadiene Rubber (NBR) and Polyvinyl Chloride (PVC) into a high-density, cross-linked cellular network. This molecular structure encapsulates dry nitrogen gas inside closed microscopic cells. The minimal air convection inside these cells accounts for the low thermal conductivity and stable R-value of the material over its 10-15 year operational life.
Unlike fiber insulations that require separate aluminum foil wraps, Kingflex elastomeric foam possesses an integrated resistance to vapor transmission. The outer protective skin prevents micro-abrasions, environmental moisture, and industrial chemical fumes from penetrating the material. This ensures clean installation without structural degradation over long-term operations.
Our product formula incorporates high-efficiency, halogen-free (where specified) fire-retardants. During thermal testing, Kingflex products self-extinguish when removed from open flames, releasing minimal smoke toxicity. Our sheets and pipes carry approvals like BS 476, CE, REACH, RoHS, UL94, and ASTM, providing developers with reliable safety assurance.
| Performance Indicator | Kingflex Elastomeric NBR/PVC Rubber Foam | Rock Wool / Glass Fiber Insulation |
|---|---|---|
| Thermal Conductivity (0℃) | ≤ 0.034 W/(m·K) (Stable R-value) | 0.036 - 0.045 W/(m·K) (Varies with moisture absorption) |
| Moisture Absorption Rate | Extremely Low (>98% Closed-cell structure) | High (Requires external vapor barrier jacket) |
| Acoustic Attenuation | Highly effective dampening for low-mid frequency duct rumble | Excellent for high-frequency noise absorption |
| Fiber Shedding Risk | Zero risk (Ideal for hospital and cleanroom HVAC ducts) | High risk (Fibers can become airborne if skin ruptures) |
| Installation Complexity | High flexibility, cuts easily, saves up to 50% installation time | Requires protective clothing, precise cutting, external cladding |
A premier manufacturing and trading combo for high-end thermal insulation products worldwide.
Kingflex is established by the Jinwei Group, which boasts a heritage of more than 40 years. Established in 1979, Jinwei Group was the first manufacturer of thermal insulation materials north of the Yangtze River. Over the decades, we have evolved into an energy-saving, environmentally friendly enterprise focusing on the R&D, production, sales, and guidance of insulation systems.
Our employees are amazing in their own right, but together they make Kingflex a fun and rewarding place to work. Our tight-knit, talented group is dedicated to providing first-class client services globally. Our team currently consists of:
At present, Kingflex operates 5 large automatic assembly lines, yielding an annual production capacity of more than 600,000 cubic meters. Through rigorous operational systems and high production quality, Kingflex has become a designated production enterprise designated by the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry.
Our factory manufactures high-grade insulation materials in various dimensions, thicknesses, and configurations to meet precise project specs.
Material: NBR/PVC
Thickness: 6mm - 50mm
Density: 40 - 55 kg/m³
Service Temperature Range: -40℃ to 105℃
Material: NBR/PVC
Thickness: 9mm - 40mm
ID Range: 6mm - 114mm
Density: 40 - 55 kg/m³
Service Temperature Range: -40℃ to 105℃
Providing specialized systems for projects requiring precise moisture and thermal control.
Providing reliable global service, transparent communication, and rapid turnaround times.
Get answers to critical procurement questions regarding technical performance, customization, and safety compliance.
Review our standard and low-temperature elastomeric products ready for global distribution.
